package com.mustafaiev.tair.autobase.web;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.mustafaiev.tair.autobase.web.command.AutobaseServletCommand;
import com.mustafaiev.tair.autobase.web.command.LoginCommandImpl;

/**
 * 
 * Autobase Sevlet
 * 
 * @author Tair Mustafaiev
 * 
 */
public class AutobaseSecurityFilter implements Filter {

    private FilterConfig config = null;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        config = filterConfig;
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {

        final HttpServletRequest req = (HttpServletRequest) request;
        final HttpServletResponse resp = (HttpServletResponse) response;

        if (req.getSession(true).getAttribute(AutobaseServletCommand.SESS_AUTH) == null) {
            req.getSession(true).setAttribute("error",
                    "You are not authorized, please authorize or register!");
            resp.sendRedirect("/");
        }

        chain.doFilter(request, response);
    }

    @Override
    public void destroy() {
        config = null;
    }

}
